Congrats!
I think you'll find that we all think you made a good choice
Browsers: My favourite is
Mozilla which in my opinion is the greatest thing to hit the net since... well... linux. Mozilla is the uncommercial and still developed Netscape.
Other excellent choices are
opera and the
KDE browser Konqueror.
Also, although I've never spent much time with it, the
Gnome browser
Galeon is apparently also really good.
If you are looking to "tweak-out" Mozilla a little, check out
Mozdev.